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HEMA2 > FINALS POINTERS > Flashcards

FINALS POINTERS Flashcards

1
Q

Where metabolic exchange between the blood and the tissue takes place

A

CAPILLARIES

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2
Q

Lined by a single continuous layer of endothelial cells supported by a basement membrane

A

CAPILLARIES

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3
Q

Lumen is large enough that only one leukocyte or red cell can pass

A

CAPILLARIES

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4
Q

Characterized by openings called JUNCTIONS where nutrients and excretory materials pass

A

CAPILLARIES

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5
Q

RBCs and platelets DO NOT leave the vessel lumen

A

CAPILLARIES

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6
Q

CAPILLARIES The blood vascular system has a continuous lining that consists of a single layer of

A

ENDOTHELIAL CELLS

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7
Q

are simple endothelial tubes that connect the arterial and venous sides of the circulation

A

Capillaries

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8
Q

are surrounded by a thin sheath of delicate collagenous and reticular fibers and accompanied by occasional perivascular cells (PERICYTES)

A

Capillaries

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9
Q

CONTINUOUS CAPILLARY

A

Muscles, Lung, CNS, and skin

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10
Q

FENESTRATED CAPILLARY

A

Intestinal mucosa,
endocrine glands,
renal glomerulus, and
pancreas

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11
Q

SINUSOIDAL

CAPILLARY

A

Liver,
bone marrow, and
spleen

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12
Q

capillaries are vessels intermediate between the arteries and capillaries and veins and capillaries

A

ARTERIAL (pre-) and VENOUS (post-)

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13
Q

have wider lumens and contain scattered smooth muscles

A

ARTERIAL CAPILLARIES (Metarterioles)

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14
Q

Oriented LONGITUDINALLY unlike that of arterioles (which are transversely oriented)

A

ARTERIAL CAPILLARIES

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15
Q

Some ARTERIAL CAPILLARIES posses __ that exists in sites where capillaries arise from metarterioles

A

PRECAPILLARY SPHINCTERS

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16
Q

Characterized by more pericytes than the capillary networks

A

VENOUS CAPILLARIES (Postcapillary venules)

17
Q

ARTERIES
TUNICA INTIMA (or INTERNA)
Layers:

A
  • Inner endothelial lining
  • Subendothelial layer (fibroelastic tissues)
  • Internal elastic membrane
18
Q

contains mainly circularly arranged smooth muscles with varying amounts of elastic and collagenous fibers

A

TUNICA MEDIA –

19
Q

parallel lined connective tissue

Some contains a definite External elastic membrane

A

TUNICA EXTERNA (or ADVENTITIA) –

20
Q

SPECIALIZED ARTERIES

A

INTRACRANIAL ARTERIES
LUNG
UMBILICAL ARTERIES
PENILE ARTERIES

21
Q

thin walled and well developed internal elastic membrane

A

INTRACRANIAL ARTERIES

22
Q

Reduction in elastic tissues and muscle (hence are thin)

A

LUNG:

23
Q

posses a media composed of two, thick, muscular layer (inner longitudinal and outer circular) and lacks an internal elastic membrane

A

UMBILICAL ARTERIES :

24
Q

intima is greatly thick and contains many longitudinal muscles

A

PENILE ARTERIES:

25
Q

Accomodates a large volume of blood
Lumen is larger compared to capillaries

Classification

A

VEINS

Venules
Small to medium sized veins
Large veins

26
Q

Some cardiac muscles extend a distance to the adventitia at the entrance to the heart

A

VENA CAVA and PULMONARY ARTERIES

27
Q

GRAVID UTERUS,
LIMBS,
UMBILICAL VEIN,
MESENTERIC VEINS

A

Thick media

28
Q

CEREBRAL and MENINGEAL VEINS,

DURAL SINUSES,

VEINS OF THE RETINA,

BONES,

PENILE ERECTILE

TISSUE and

PLACENTA

A

no tunica media

29
Q

Seen in many small and medium sized veins

Are semilunar folds or pockets produced by local infolding of the INTIMA

A

VENOUS VALVES

30
Q

Sites where arteries are directly connected to veins without any intervening capillary

A

ARTERIOVENOUS ANASTOMOSES

31
Q

– convoluted outline surrounded by a CT sheath

A

GLOMUS

32
Q

Seen in arteries and veins that are >1mm in diameter

Small nutrient blood vessels

A

VASA VASORUM

33
Q

Intrinsic Pathway

A 
Kininogen
Kallikrein
12
11
9
8a
10
Prothrombin II
Fibrinogen II
34
Q

Extrinsic Pathway

A 
7
Tissue factor
10
5a
Thrombin IIa
Fibrin Ia
13a

HEMA2 (17 decks)

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